Finding the Third Proportional to 1,644,324 and 3,586,668

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,324 : 3,586,668 = 3,586,668 : x
2. Step 2: Convert to fraction form
   1,644,324/3,586,668 = 3,586,668/x
3. Step 3: Cross multiply
   1,644,324x = 3,586,668 × 3,586,668
4. Step 4: Simplify right side
   1,644,324x = 12,864,187,342,224
5. Step 5: Solve for x
   x = 12,864,187,342,224/1,644,324
6. Step 6: Final answer
   x = 7,823,389.64